Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Each year, around 24,000 Americans are bitten by rats!
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The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
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In 75% of American households, women manage the money and pay the bills.
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On average, men's noses are 10% larger than women's.
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90% of people sit at their computer desk slouching, supporting their head with their left hand.
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Nearly 10% of American households dress their pets in Halloween costumes.
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Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
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